Quantum-limited linewidth of a chaotic laser cavity .

Patra, M. and Schomerus, H. and Beenakker, C. W. J. (2000) Quantum-limited linewidth of a chaotic laser cavity . Physical review a, 61. 023810. ISSN 1094-1622

PDF (e023810.pdf)

Download (77kB)


A random-matrix theory is presented for the linewidth of a laser cavity in which the radiation is scattered chaotically. The linewidth is enhanced above the Schawlow-Townes value by the Petermann factor K, due to the nonorthogonality of the cavity modes. The factor K is expressed in terms of a non-Hermitian random matrix, and its distribution is calculated exactly for the case in which the cavity is coupled to the outside via a small opening. The average of K is found to depend nonanalytically on the area of the opening, and to greatly exceed the most probable value.

Item Type: Journal Article
Journal or Publication Title: Physical review a
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/3100/3107
Departments: Faculty of Science and Technology > Physics
ID Code: 704
Deposited By: Dr Henning Schomerus
Deposited On: 31 Oct 2007
Refereed?: Yes
Published?: Published
Last Modified: 25 Jan 2020 01:55
URI: https://eprints.lancs.ac.uk/id/eprint/704

Actions (login required)

View Item View Item